查询词典 average power

First,the state-space average method is used to derive a small signal average model of the power stage.

首先应用状态空间平均法，推导出功率级的小信号平均模型。

And the reasonable proposal for the construction the region electrical power system was put forwardThe power load forecast is the basis of the power system planning.With the actual planning of regional development,uses a scientific and effective load forecasting methods forecast plans the local load electric quantity,is an important work to the regional power system planning.This dissertation uses the BP algorithm, proposed a double hidden layer structure artificial neural network to the forecast ultra-short-term power system load.After the simulation with the actual data,the method which this dissertation proposed compared to the traditional linear extrapolation Prediction method average absolute percent error of 2.5 percentage points,ten minute load forecasts achieve the average absolute percentage error are smaller than 2.5%accuracy.

本文利用人工神经网络BP算法，提出了一种双隐层结构的电力系统超短期负荷预测方法，经过对实际数据的仿真实验，本文提出的神经网络超短期负荷预测方法比传统的线性外推法预测平均绝对百分误差降低2.5个百分点，十分钟负荷预测达到平均绝对百分误差小于2.5%的精度。

This kind of system utilizes a new current-sharing scheme which amazingly bases on magnetic amplifier and average current-sharing method.The whole design of the modulized electroplating power system is discussed. The power section of the system is made up of a few power modules, and the control section is a simple and common PWM controller with compensation network.

随着开关电源输出电流的日益增加，由多个电源模块并联替代单个大电流模块输出大电流的优势也越来越明显，灵活而且经济的分布式电源系统已经成为电镀电源系统之趋势，而其中的电源模块电流平衡成为技术关键之一。

RELIABILITY MTBF 600,000 hours Unrecoverable read errors 1 in 10^14 POWER Average idle current 5.0 watts Average seek power 7.30 watts Standby power 1.4 watts Sleep power 1.07 watts Maximum start current, DC 2.0 amps ENVIRONMENT Ambient Temperature Operating 0 to 60 degrees C Nonoperating -40 to 70 degrees C Maximum operating temperature change 20 degrees C per hour Maximum nonoperating temperature change 30 degrees C per hour Maximum operating case temperature 69 degrees C Relative Humidity Operating 5 to 90 Nonoperating 5 to 95 Maximum allowable humidity change 30 per hour Altitude Operating altitude -60.96 meters (-200 feet) Operating altitude 3,048 meters (10,000 feet) Nonoperating altitude -60.96 meters (-200 feet) Nonoperating altitude 12,192 meters (40,000 feet) Shock Operating vibration 0.50 Gs Operating Shock 63 Gs at 2 msec Nonoperating Shock 350 Gs at 2 msec Vibration Operating vibration 0.5 Gs at22-350 Hz Nonoperating vibration 5.0 Gs at 22-350 Hz ACOUSTICS Acoustics 2.6 bels Acoustics 2.7 bels

可靠性 平均无故障工作时间六十点○万小时不可恢复读错误1 10 ^ 14 电力平均闲置电流五点○瓦特平均寻求权力7.30瓦特待机功耗一点四瓦特睡眠电力1.07瓦特最大启动电流，直流二点〇安培环境常温经营0至60摄氏度非经营性-40 ℃至70摄氏度最大运行温度变化20摄氏度，每小时非经营性最大温度变化30摄氏度，每小时最大运行外壳温度69摄氏度相对湿度操作5至90 非经营性5日至95 最大允许湿度变化每小时30 高原高空作业-60.96米（-200米）操作高度三〇四八米（ 10000英尺）非经营性高度-60.96米（-200米）非经营性高度一二一九二米休克操作振动0.50亚基操作震动 63亚基在2毫秒非经营性休克 350亚基在2毫秒振动操作振动0.5气孔at22 - 350赫兹非经营性振动5.0亚基在22-350赫兹声学声学 2.6分贝声学仅有2.7分贝

It is stressed in this paper the analysis methods used in vibration faults of average power spectrum and cepstrum, based on the fast fourier transform algorithm, and development of the vibration signal analysis system in test-driving of WJ6 engine, involved the technic of software or hardware.

在WJ6发动机生产试车台上，实现了通过实时给出机匣振动时域、频谱波形，分析及辨识发动机主转子系统故障。

Numerical results show that Q factor and amplitude jitter can be improved for 40 Gb/s return-to-zero signals with Q factor between 5 and 12 when the fiber input average power is chosen suitably.

数值研究了输入平均功率对信号再生的影响，结果表明，通过控制输入光纤的平均功率，Q值在5到12的40 Gb/s归零码信号再生后均可实现Q值和幅度抖动的改善。

The Industrial Boiler Control Energy Saving System (EAST-2) uses frequency adjustment control and improved measures for air-compressor, wind blaster in coal-burning blowers; water pumps and blower exhaust; boiler exhaust speed control, water refilling system design and gas burning boiler. Its average power saving rate is 30-50%.

锅炉节能控制系统（EAST-2），是专门为工业、供热锅炉制作的一套节能控制系统，包括对燃煤锅炉的鼓引风机变频控制、补水泵、炉排的改造，及鼓引风机变频、炉排周速、补水系统设计及燃气锅炉节能改善措施。

In this paper a power-saving scheme for mobile Ad hoc networks based on IEEE 802.11 DCF is proposed.Under the proposed scheme,the source node will regulate the transmit power of the data packets dynamically by the use of a method of pre-estimation of average noise power and the feedback of RTS/CTS handoffs during the reception.

基于IEEE 802.11 DCF MAC协议提出了一种适用于移动无线自组网的功率控制节能方案，在该方案中节点通过一种接收过程中的噪声功率预估计方法和RTS/CTS握手机制的反馈，动态调节待发送数据分组的发射功率。

This design controlled member is an electric heating stove, adds through the control in the resistance wire beginnings and ends voltage operating time operating time, comes the average power which outputs to the resistance wire to perform to control.

本设计的控制对象为电加热炉，通过控制加在电阻丝两端电压的工作时间，来对电阻丝输出的平均功率加以控制。

The extended compatibilities scan tree techniques can drastically reduce test application time and average power.

尽管扩展相容性扫描树技术可以彻底地降低测试应用时间和平均测试功耗，扫描输出的个数却大大增加。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。